(19)

(11)

EP 2 488 800 A1

(12)

(43) Date of publication: 22.08.2012 Bulletin 2012/34 (21) Application number: 10824143.1 (22) Date of filing: 15.10.2010

(51) International Patent Classification (IPC):  F24J 2/12(2006.01) (86) International application number: PCT/US2010/052796 (87) International publication number: WO 2011/047231 (21.04.2011 Gazette 2011/16)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 16.10.2009 US 252372 P 14.10.2010 US 904695 (71) Applicant: D&D Manufacturing Titusville, FL 32780 (US)	(72) Inventors: POLK, Dale, Jr. Titusville, FL 32780 (US) POLK, Dale, Sr. Titusville, FL 32780 (US) (74) Representative: de Jong, Jean Jacques et al Omnipat 24, place des Martyrs de la Résistance 13100 Aix en Provence 13100 Aix en Provence (FR)